Gas-burner.



No. 788,695. PATENTBD MAY 2,1905.

F. M. ASHLEY.

GAS BURNER.

. APPLIOATIOH FILED MAY 2a. 1890.

2 sums-sum 1.

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No. 788,695. PATENTED MAY 2, 1905. P. M. ASHLEY.

GAS BURNER.

APPLIOATION FILED MAY 25. 1899.

2 SHEETS-SHEET 2.

WITNESSES:

INVENTOR Patented May 2, 1905.

PATENT OFFICE.

FRANK M. ASHLEY, OF NEW YORK, N. Y.

GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 788,695, dated May 2, 1905. Application filed May 25, 1899. Serial No. 718,237.

To all whom it may concern:

Be it known that I, FRANK M. AsI-ILEY, a citizen of the United States, residing at New York city, in the county of Kings and State of New York, have invented certain new and useful Improvements in Gas Burners, of which the following is a full, clear, and exact specification.

This invention relates to gas-burners, and has particular reference to burners used in the burning of acetylene gas or other gas rich in hydrocarbon.

The burners herein described are particularly applicable for use in the burning of the gas for illumination purposes; and the object of the invention is to secure the perfect c011- sumption of the gas and attain a maximum amount of light therefrom.

The invention will be more particularly described hereinafter with reference to the forms thereof shown in the accompanying drawings, in which- Figure 1 is a side view of a burner constructed in accordance with my invention.

Fig. 2 is a sectional view of the burner shown in Fig. 1. Fig. 3 is a detail side View of the interior part of Fig. 2, and Fig. 4 is a top view of Fig. 1. Fig. 5 is a top view with a modified form of burner. Fig. 6 is a sectional view of the modification shown in Fig. 5. Fig. 7 is a plan sectional view of the same, and Fig. 8 is a side view of the interior portions of the burners shown in Figs. 5, 6, and 7.

Referring to Figs. 1 to 4 of the drawings, 1 is a suitable body portion or casing having a screw-thread 2 adapted to screw upon a pipe communicating with the sourceof gas-supply. This casing may be of any suitable construction or shape and be provided with any suitable means for connecting the same with a source of gas supply. In the drawings I have shown the same as having a flaring or bell-shaped mouth 8. Inside of the casing is a part 4, adapted to closely fit the interior of the casing 1 and having a flaring or bellshaped tip 5, corresponding in shape to the bell-shaped portion 3 of the casing 1. A wall 6 divides the lower portion of the part 4 from its bell-shaped part 5. The bell-shaped part 5 is made sufficiently smaller than the bell-shaped part 3 to form an annular passage 7 between the two walls, and a plurality of openings 8 8 8 are made in the part 4, thereby placing the source of gas-supply in cominunieation with the annular passage 7. In

the wall 5 are cut a numberof perforations 9 9 9 to provide a communication between the outside atmosphere and the annular passage 7. a

In the constructions shown in Figs. 5 to S, 1 is a casing or body portion of the tip, and in this instance is provided with a rounded top and an enlarged interior annular chamber 10. A part 1 1 is adapted to closely lit the interior of the part 1. at a point near its base, substan tially as is shown in Fig. 6, and at its upper end is of smaller diameter than the opening through the top of the casim 1, whereby an annular passage 12 will be formed between the part 11 and the casing 1. I11 the part 11 is a passage 13, communicating with the source of gas-supply and leading into the enlarged chamber 10. From the top of the part 11 a passage 14 leads downward a convenient distance and then communicates with one or more upwardly-diverging passages 15, which communicate with the annular passage 12 at a point immediately below the extreme tip of the burner.

In the operation of the device in the construction shown in Figs. 1 to 4 the gas passes through the openings 8 8 into the annular passage 7 and is consumed at the outer end of this passage. During the burning of the gas the air from the surrounding atmosphere is drawn down in the center of the flame-ring and enters the annular passage 7 through the openings 9 9 9 and is mixed with the gas, thereby enriching the same with oxygen. The air having passed downward through the surrounding ring of flame will have already become warmed to a certain extent and will not require as great a heat to burn. the oxygen therein as would otherwise be required. By making tliewalls 3 and 5 of flaring or bell shape, as shown in the drawings, an angle will be imparted to the flame and a greater inductive power thereby given to the gas to draw in the outside atmosphere. It will be observed that in this construction cons'iderable space is offered to the surrounding air from which to draw upon for oxygen.

In theconstruction shown in Figs. 5 to 8 of the drawings the gas passes through passage 13 into the annular chamber 10, where it is allowed to expand to a certain extent, and the air from the surrounding atmosphere is drawn down through the passage 14. In this instance the diverging passages serve substantially the same purpose as the flaring walls 3 and 5 in the construction above described and aid in increasing the inductive power of the gas. The gas from the source of supply in the construction shown in Figs. 5 to 8 passes up into the enlarged chamber 10 and is there allowed to expand. From this chamber the gas is drawn for consumption through the passage 12. With this construction any uneven variation of pressure of the gas in the mains will not affect the burning of the lights, for the reason that the gas will be drawn from the reservoir 10 at a substantially constant pressure.

It will be understood that I use the term annular herein as applied to a burner of either cylindrical or angular shape and that the central passage referred to may beof any suitable diameter or dimensions.

I do not herein claim, broadly, the feature of a central tube drawing air downward within the center of a cylindrical-shaped flame, such feature being broadly claimed in my copending application Serial N 0. 718,231 nor do I claim, broadly. herein the use of parallel cylinders or tubes for that purpose, such construction being claimed in my copending application Serial No. 718,231. The feature of the mixing-chamber shown in Fig. 6 is claimed in my copending application Serial No. 718,239.

Having thus described my invention, I declare that what I claim as new, and desire to secure by Letters Patent, is

1. A gas-burner, having an annular passage communicating with a source of gassupply and at the outer end of which the flame is ignited, a central passage surrounded by said annular passage and communicating with the atmosphere, and passages from said central passage to said annular passage, substantially as described.

2. A gas-burner, having an annular flaring passage communicating with the source of gas-supply, a central passage surrounded by said annular passage communicating with the atmosphere and with said annular p'as sage, substantially as described.

3. A gas-burner, having an annular flaring passage communicating with the source of gas-supply, a central passage surrounded by said annular passage communicating with the atmosphere, and with said annular passage at the base thereof, substantially as de scribed.

4. A gasburner, having an outer casing and an inner plug forming between the same an annular mixing-passage, said plug having a flaring opening communicating with the atmosphere and the bottom of which forms a diaphragm, passages above said diaphragm between the atmosphere and the annular mixing-chamber and below said diaphragm between the gas-supply and the mixingchamber, substantially as described.

5. A gas-burner, having a gas-inlet passage, a mixing-passage, a passage between the latter and said gas-inlet passage, a passage from the atmosphere to the mixing-passage, and a passage leading from said rim, substantially as described.

6. A gas-burner, having a gas-inlet passage, an annular mixing-passage, a passage between the latter and said gas-inlet passage, a passage from the atmosphere to themixingpassage, and means for varying the size of the mixing passage, substantially as described.

7. A gas-burner, having an outer casing and an inner plug, said parts being adjustable with-respect to each other and forming between the same an annular mixing-passage, a central passage in said plug, passages from said central passage to the mixing-passage, and passages from the source of gassupply to said mixing passages, substantially as described.

8. A gas-burner, having a casing, an inner plug containing a central passage, and forming with said casing a mixing-passage, a diaphragm in said central passage, passages above and below said diaphragm and from said central passage to the mixing-passage, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK M. ASHLEY.

Witnesses:

PHILIP H. BUOKLER, AL X FERGUSON. 

